@theia/core/src/browser/tree/tree-decorator.spec.ts

Theia is a cloud & desktop IDE framework implemented in TypeScript.

// *****************************************************************************
// Copyright (C) 2018 TypeFox and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************

import { expect } from 'chai';
import { TreeDecoratorService, AbstractTreeDecoratorService, TreeDecoration } from './tree-decorator';

class MockTreeDecoratorService extends AbstractTreeDecoratorService {

    constructor() {
        super([]);
    }

}

describe('tree-decorator', () => {

    describe('tree-decorator-service', () => {

        const decoratorService: TreeDecoratorService = new MockTreeDecoratorService();

        it('should inflate an empty object into an empty map', () => {
            expect(decoratorService.inflateDecorators({})).to.be.empty;
        });

        it('should inflate an object into the corresponding map', () => {
            const expected = new Map<string, TreeDecoration.Data[]>();
            expected.set('id_1', [
                {
                    tooltip: 'tooltip'
                },
                {
                    fontData: {
                        color: 'blue'
                    }
                }
            ]);
            expected.set('id_2', [
                {
                    backgroundColor: 'yellow'
                },
                {
                    priority: 100
                }
            ]);
            expect(decoratorService.inflateDecorators(
                {
                    'id_1': [
                        {
                            'tooltip': 'tooltip'
                        },
                        {
                            'fontData': {
                                'color': 'blue'
                            }
                        }
                    ],
                    'id_2': [
                        {
                            'backgroundColor': 'yellow'
                        },
                        {
                            'priority': 100
                        }
                    ]
                }
            )).to.be.deep.equal(expected);
        });

        it('should deflate an empty map into an empty object', () => {
            expect(decoratorService.inflateDecorators({})).to.be.empty;
        });

        it('should inflate an object into the corresponding map', () => {
            const decorations = new Map<string, TreeDecoration.Data[]>();
            decorations.set('id_1', [
                {
                    tooltip: 'tooltip'
                },
                {
                    fontData: {
                        color: 'blue'
                    }
                }
            ]);
            decorations.set('id_2', [
                {
                    backgroundColor: 'yellow'
                },
                {
                    priority: 100
                }
            ]);
            expect(decoratorService.deflateDecorators(decorations)).to.be.deep.equal({
                'id_1': [
                    {
                        'tooltip': 'tooltip'
                    },
                    {
                        'fontData': {
                            'color': 'blue'
                        }
                    }
                ],
                'id_2': [
                    {
                        'backgroundColor': 'yellow'
                    },
                    {
                        'priority': 100
                    }
                ]
            });
        });

    });

    describe('caption-highlight', () => {

        describe('range-contains', () => {
            ([
                [1, 2, 3, false],
                [0, 0, 1, true],
                [1, 0, 1, true],
                [1, 1, 1, true],
                [2, 1, 1, true],
                [3, 1, 1, false],
                [1, 1, -100, false],
            ] as [number, number, number, boolean][]).forEach(test => {
                const [input, offset, length, expected] = test;
                it(`${input} should ${expected ? '' : 'not '}be contained in the [${offset}:${length}] range`, () => {
                    expect(TreeDecoration.CaptionHighlight.Range.contains(input, { offset, length })).to.be.equal(expected);
                });
            });
        });

        it('split', () => {
            const actual = TreeDecoration.CaptionHighlight.split('alma', {
                ranges: [{ offset: 0, length: 1 }]
            });
            expect(actual).has.lengthOf(2);
            expect(actual[0].highlight).to.be.true;
            expect(actual[0].data).to.be.equal('a');
            expect(actual[1].highlight).to.be.undefined;
            expect(actual[1].data).to.be.equal('lma');
        });

    });

});